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| author | Dario Faggioli <dario.faggioli@citrix.com> | 2012-12-18 18:11:33 +0000 |
|---|---|---|
| committer | Dario Faggioli <dario.faggioli@citrix.com> | 2012-12-18 18:11:33 +0000 |
| commit | 21b5f316c7046186ec9ed36af33fc1a44b71b4bf (patch) | |
| tree | c520f6f9539ce5e536a36c7b9d36dd097278110c /xen/common/sched_credit2.c | |
| parent | ebce2d836c6f56e2a90c2794cc9da1a7eb1c43bb (diff) | |
| download | xen-21b5f316c7046186ec9ed36af33fc1a44b71b4bf.tar.gz xen-21b5f316c7046186ec9ed36af33fc1a44b71b4bf.tar.bz2 xen-21b5f316c7046186ec9ed36af33fc1a44b71b4bf.zip | |
xen: tracing: introduce per-scheduler trace event IDs
So that it becomes possible to create scheduler specific trace
records, within each scheduler, without worrying about the
overlapping, and also without giving up being able to recognise them
univocally. The latter is deemed as useful, since we can have more
than one scheduler running at the same time, thanks to cpupools.
The event ID is 12 bits, and this change uses the upper 3 of them for
the 'scheduler ID'. This means we're limited to 8 schedulers and to
512 scheduler specific tracing events. Both seem reasonable
limitations as of now.
This also converts the existing credit2 tracing (the only scheduler
generating tracing events up to now) to the new system.
Signed-off-by: Dario Faggioli <dario.faggioli@citrix.com>
Acked-by: George Dunlap <george.dunlap@eu.citrix.com>
Committed-by: Keir Fraser <keir@xen.org>
Diffstat (limited to 'xen/common/sched_credit2.c')
| -rw-r--r-- | xen/common/sched_credit2.c | 28 |
1 files changed, 16 insertions, 12 deletions
diff --git a/xen/common/sched_credit2.c b/xen/common/sched_credit2.c index 76f9e9a05b..b0af010bbf 100644 --- a/xen/common/sched_credit2.c +++ b/xen/common/sched_credit2.c @@ -29,18 +29,22 @@ #define d2printk(x...) //#define d2printk printk -#define TRC_CSCHED2_TICK TRC_SCHED_CLASS + 1 -#define TRC_CSCHED2_RUNQ_POS TRC_SCHED_CLASS + 2 -#define TRC_CSCHED2_CREDIT_BURN TRC_SCHED_CLASS + 3 -#define TRC_CSCHED2_CREDIT_ADD TRC_SCHED_CLASS + 4 -#define TRC_CSCHED2_TICKLE_CHECK TRC_SCHED_CLASS + 5 -#define TRC_CSCHED2_TICKLE TRC_SCHED_CLASS + 6 -#define TRC_CSCHED2_CREDIT_RESET TRC_SCHED_CLASS + 7 -#define TRC_CSCHED2_SCHED_TASKLET TRC_SCHED_CLASS + 8 -#define TRC_CSCHED2_UPDATE_LOAD TRC_SCHED_CLASS + 9 -#define TRC_CSCHED2_RUNQ_ASSIGN TRC_SCHED_CLASS + 10 -#define TRC_CSCHED2_UPDATE_VCPU_LOAD TRC_SCHED_CLASS + 11 -#define TRC_CSCHED2_UPDATE_RUNQ_LOAD TRC_SCHED_CLASS + 12 +/* + * Credit2 tracing events ("only" 512 available!). Check + * include/public/trace.h for more details. + */ +#define TRC_CSCHED2_TICK TRC_SCHED_CLASS_EVT(CSCHED2, 1) +#define TRC_CSCHED2_RUNQ_POS TRC_SCHED_CLASS_EVT(CSCHED2, 2) +#define TRC_CSCHED2_CREDIT_BURN TRC_SCHED_CLASS_EVT(CSCHED2, 3) +#define TRC_CSCHED2_CREDIT_ADD TRC_SCHED_CLASS_EVT(CSCHED2, 4) +#define TRC_CSCHED2_TICKLE_CHECK TRC_SCHED_CLASS_EVT(CSCHED2, 5) +#define TRC_CSCHED2_TICKLE TRC_SCHED_CLASS_EVT(CSCHED2, 6) +#define TRC_CSCHED2_CREDIT_RESET TRC_SCHED_CLASS_EVT(CSCHED2, 7) +#define TRC_CSCHED2_SCHED_TASKLET TRC_SCHED_CLASS_EVT(CSCHED2, 8) +#define TRC_CSCHED2_UPDATE_LOAD TRC_SCHED_CLASS_EVT(CSCHED2, 9) +#define TRC_CSCHED2_RUNQ_ASSIGN TRC_SCHED_CLASS_EVT(CSCHED2, 10) +#define TRC_CSCHED2_UPDATE_VCPU_LOAD TRC_SCHED_CLASS_EVT(CSCHED2, 11) +#define TRC_CSCHED2_UPDATE_RUNQ_LOAD TRC_SCHED_CLASS_EVT(CSCHED2, 12) /* * WARNING: This is still in an experimental phase. Status and work can be found at the |